6 - 18
–+ELEC
ÈThe thermo switch circuit is open.
É The thermo switch circuit is closed.
Test step Water temperature Continuity
1 Less than 16
± 3 °C
(60.8 ± 5.4 °F) YES
2 More than 16
± 3 °C
(60.8 ± 5.4 °F) NO
3 More than 11
± 3 °C
(51.8 ± 5.4 °F) NO
4 Less than 11
± 3 °C
(51.8 ± 5.4 °F) YES
Test steps 1 & 2: Heating phase
Test steps 3 & 4: Cooling phase
WARNING
Handle the thermo switch with special
care.
Never subject the thermo switch to
strong shocks. If the thermo switch is
dropped, replace it.
Check the thermo switch operation.
CARBURETOR HEATER INSPECTION
1. Inspect:
Carburetor heater resistance
Out of specification → Replace.
Tester (+) probe →
Carburetor heater terminal 1
Tester ( –) probe →
Carburetor heater body 2
Carburetor
heater resistance Tester selector
position
4.6 ~ 9.6 Ω at
20 °C (68 °F) Ω
× 1
CARBURETOR HEATING SYSTEM
